Issue With Subsurface Scattering and Scale on a Human Model
Your subsurface radius value probably needs to come down in proportion to your model's scale.  Observe the following difference in SSS radius:


With a 60m model, 1 meter between light bounces is still fairly surface level, scaling it down the light could penetrate all the way through the model.  Here's the section from the documentation:
RGB Radius
This is not in fact the radius of the subsurface scattering, but the average path length between scattering events. As the light travels through the object it bounces around then emerges from the surface at some other point. This value corresponds to the average length the light travels between each bounce. The longer the path length is, the further the light is allowed to scatter. This is the main source of a material’s perceived “scatter color.” A material like skin will have a higher red radius than green and blue. Subsurface scattering is the diffusion of light beneath the surface. You control how far the light spreads to achieve a specific result.